@CHARSET "UTF-8";

.main_div{
	text-align: center;
}
ul li{
	list-style-type: none;
}

.float_left{
	float:left;
}
.float_right{
	float:right;
}
.clear_float{
	clear:both;
}
.padding_top20{
	padding-top:20px;
}